སྒྱུ་རྩལ
མཛེས་སྡུག་དང་བདེ་ཐང
བཟོ་རིག
རིག་གནས་དང་ལོ་རྒྱུས
དགའ་སྟོན
ཁོར་ཡུག
ཟས་དང་བཏུང་རྫས
ཕྱིར་འཕྲུལ་རིག
ཚན་རིག
རྩེད་འགྲན
རིག་རྩལ
གྱོན་རུང

ལྕགས་བཟོ

བིལུ་པིརིན་ཊི ༥༨༦ ཡོད • ཡན་ལག་དབྱེ་རིམ ༨

བིལུ་པིརིན་ཊི (༥༨༦)

Continuous Casting of Steel Billets

Continuous Casting of Steel Billets

Forge གྱིསNO

ལྕགས་བཟོ

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Test Leads with Sheet-Metal Spring Clips: Dusinberre, 1910

Test Leads with Sheet-Metal Spring Clips: Dusinberre, 1910

Ed གྱིསFI

གློག་འཕྲུལ

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Worm-Drive Hose Clamp: North & Burke, 1945

Worm-Drive Hose Clamp: North & Burke, 1945

Emma གྱིསSE

ལྕགས་བཟོ

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Bar Clamp with Die-Formed Notches: Hargrave, 1927

Bar Clamp with Die-Formed Notches: Hargrave, 1927

Woody གྱིསNO

ལྕགས་བཟོ

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Dial Gauge: Logan, 1883

Dial Gauge: Logan, 1883

Emma གྱིསSE

འཕྲུལ་རིག

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Micrometer Gauge: Pratt, 1878

Micrometer Gauge: Pratt, 1878

Emma གྱིསSE

འཕྲུལ་རིག

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Feeler Gauge Set in a Folding Handle: Curtin, 1911

Feeler Gauge Set in a Folding Handle: Curtin, 1911

Mark གྱིསFI

འཕྲུལ་རིག

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Electric Hot Plate with a Cast-In Element: Jordan & Schneider, 1935

Electric Hot Plate with a Cast-In Element: Jordan & Schneider, 1935

Ed གྱིསFI

གློག་འཕྲུལ

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Propane Hand Torch: Goss, 1949

Propane Hand Torch: Goss, 1949

Emma གྱིསSE

ལྕགས་བཟོ

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Hot-Rolled Steel Angles and Channels

Hot-Rolled Steel Angles and Channels

Forge གྱིསNO

ལྕགས་བཟོ

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Steel Wool: Shavings Pulled from Wire

Steel Wool: Shavings Pulled from Wire

Forge གྱིསNO

ལྕགས་བཟོ

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Pins in Eighteen Operations: Adam Smith's Pin Factory

Pins in Eighteen Operations: Adam Smith's Pin Factory

Forge གྱིསNO

ལྕགས་བཟོ

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Emery Cloth: Graded Grit Between a Make Coat and a Size Coat

Emery Cloth: Graded Grit Between a Make Coat and a Size Coat

Mary གྱིསFI

རྫས

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Toothed Steel Sickle: Steel Welded to Iron, Toothed with a Chisel

Toothed Steel Sickle: Steel Welded to Iron, Toothed with a Chisel

Forge གྱིསNO

ལྕགས་བཟོ

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Rasps: Teeth Raised One at a Time with a Pointed Punch

Rasps: Teeth Raised One at a Time with a Pointed Punch

Forge གྱིསNO

ལྕགས་བཟོ

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Stamped Kitchen Knife: Blade, Tang and Riveted Scales

Stamped Kitchen Knife: Blade, Tang and Riveted Scales

Forge གྱིསNO

ལྕགས་བཟོ

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Claw Hammer: Drop-Forged Head, Turned Wooden Handle

Claw Hammer: Drop-Forged Head, Turned Wooden Handle

Forge གྱིསNO

ལྕགས་བཟོ

༣༢
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Ball Bearings: Races, Balls and Cage

Ball Bearings: Races, Balls and Cage

Emma གྱིསSE

ལྕགས་བཟོ

༡༩
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Hacksaw: Bent and Flattened Frame, Bi-Metal Blade

Hacksaw: Bent and Flattened Frame, Bi-Metal Blade

Emma གྱིསSE

ལྕགས་བཟོ

༢༧
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Tin Snips: Drop-Forged Halves, Trimmed and Riveted

Tin Snips: Drop-Forged Halves, Trimmed and Riveted

Forge གྱིསNO

ལྕགས་བཟོ

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Adjustable Spanner: One-Piece Forging, Broached Guide and Worm

Adjustable Spanner: One-Piece Forging, Broached Guide and Worm

Forge གྱིསNO

ལྕགས་བཟོ

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Pliers: Drop-Forged Halves and a Box Joint

Pliers: Drop-Forged Halves and a Box Joint

Forge གྱིསNO

ལྕགས་བཟོ

༢༢
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Screwdrivers: Drawn Wire, Cold-Formed Tips and Turned Handles

Screwdrivers: Drawn Wire, Cold-Formed Tips and Turned Handles

Emma གྱིསSE

ལྕགས་བཟོ

༢༠
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Brick Blacksmith's Forge with a Bottom-Blast Tuyere

Brick Blacksmith's Forge with a Bottom-Blast Tuyere

Forge གྱིསNO

ལྕགས་བཟོ

༡༣
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586 ནང་ལས་ 24 སྟོན་དོ།