Invention Grant
- Patent Title: Apparatus for making leading-in wires for incandescent lamps
- Patent Title (中): 用于制造白炽灯导线的装置
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Application No.: US25902318Application Date: 1918-10-21
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Publication No.: US1359135APublication Date: 1920-11-16
- Inventor: WETMORE MINER P
- Applicant: HYGRADE ENGINEERING CO INC
- Assignee: Hygrade Engineering Co Inc
- Current Assignee: Hygrade Engineering Co Inc
- Priority: US25902318 1918-10-21
- Main IPC: H01J9/28
- IPC: H01J9/28
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