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The ornamental design for a crystallization furnace for dental prostheses, as shown and described. |
FIG. 1 is a front elevational view of a crystallization furnace for dental prostheses showing our new design with the central stage raised into position for heating a dental prothesis (not shown) mounted thereof;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a front isometric view thereof; and,
FIG. 8 is a front isometric view thereof with the central stage shown in lowered position.
Watanabe, Kazuhiro, Takahashi, Manabu, Shimizu, Toshio, Hakamatsuka, Yasuharu, Aihara, Mamoru
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 23 1991 | Olympus Optical Company, Ltd. | (assignment on the face of the patent) | / | |||
Jan 23 1991 | Denken Co., Ltd. | (assignment on the face of the patent) | / | |||
Feb 08 1991 | HAKAMATSUKA, YASUHARU | OLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005631 | /0505 | |
Feb 08 1991 | WATANABE, KAZUHIRO | OLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005631 | /0505 | |
Feb 08 1991 | AIHARA, MAMORU | OLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005631 | /0505 | |
Feb 08 1991 | TAKAHASHI, MANABU | OLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005631 | /0505 | |
Feb 08 1991 | SHIMIZU, TOSHIO | OLYMPUS OPTICAL COMPANY, LIMITED, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005631 | /0505 |
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