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US1915478A
|
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Grinding machine for razor blades
|
|
US1915477A
|
|
Stropping machine for razor blades
|
|
US1907595A
|
|
Finish honing machine for razor blades
|
|
US1937795A
|
|
Rough honing machine for razor blades
|
|
US1867331A
|
|
Forging machine
|
|
US1805691A
|
|
Razor stropper
|
|
GB271757A
|
|
Improvement in method of making curved razor blades
|
|
GB274215A
|
|
Improvements in replacement blade for safety razor
|
|
GB259287A
|
|
Improvements in brazing machine
|
|
US1590210A
|
|
Brazing machine
|
|
GB252763A
|
|
Improvements in knife grinding
|
|
US1608140A
|
|
Knife grinding
|
|
GB231378A
|
|
Method of making knife blades and the like
|
|
US1543880A
|
|
Method of making knife blades, etc.
|
|
GB230880A
|
|
Improvements in polishing apparatus
|
|
US1578558A
|
|
Polishing machine
|
|
US1608079A
|
|
Forging machine
|
|
US1599956A
|
|
Polishing machine
|
|
US1838196A
|
|
Grinding machine
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