Invention Grant
- Patent Title: Machine for the manufacture of rails used in ladders
- Patent Title (中): 梯子用钢轨制造机
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Application No.: US86330959Application Date: 1959-12-31
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Publication No.: US3108921APublication Date: 1963-10-29
- Inventor: GILLMAN EDWARD T , BASILE GENE E
- Applicant: PUTNAM ROLLING LADDER CO INC
- Assignee: Putnam Rolling Ladder Co Inc
- Current Assignee: Putnam Rolling Ladder Co Inc
- Priority: US86330959 1959-12-31
- Main IPC: B29C53/58
- IPC: B29C53/58 ; B29C53/68 ; B29C63/02 ; B29C63/10 ; B29C70/52 ; B29C70/86 ; B29D99/00 ; E06C7/08
Information query
