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The ornamental design for an operating knob for endoscope, as shown and described.
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FIG. 1 is a perspective view of the front, top and left side of an operating knob for endoscope showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a partial rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The elements shown in broken lines do not constitute any part of the claimed design.
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| Aug 26 2002 | PENTAX Corporation | (assignment on the face of the patent) | / | |||
| Dec 27 2002 | Asahi Kogaku Kogyo Kabushiki Kaisha | PENTAX Corporation | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 013818 | /0497 | |
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