Speed-changing mechanism.

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US833330A Speed-changing mechanism. 失效

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Patent Title: Speed-changing mechanism.
Application No.: US1905274636

Application Date: 1905-08-17
Publication No.: US833330A

Publication Date: 1906-10-16
Inventor: METCALFE JOHN
Applicant: F E REED COMPANY , METCALFE JOHN
Assignee: F E Reed Company,John Metcalfe
Current Assignee: F E Reed Company,John Metcalfe
Priority: US1905274636 1905-08-17

Speed-changing mechanism.

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