Patent US 4789791A
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Patent number | US 4789791A |
---|---|
Title | Rotary drive mechanism |
Inventors | Heinz Erwin Grellmann |
Company | Tektronix Inc |
Filing date | 1986-09-26 |
Grant date | 1988-12-06 |
Cites |
Patent number | US 4789791A |
---|---|
Title | Rotary drive mechanism |
Inventors | Heinz Erwin Grellmann |
Company | Tektronix Inc |
Filing date | 1986-09-26 |
Grant date | 1988-12-06 |
Cites |