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Japan Chartered Electronic Book Library
This is a Japanese patent, which can be viewed in IPDL patent retrieval system of Japan Industrial Intellectual Property Electronic Library.

Japan. Kokai Tokkyo Koho means "Japanese Patent Bulletin", so the first two digits of the category code: a, 54,076,557 indicate that the Showa year is 54 years (1979), and in the IPDL retrieval system, the Showa year is represented by the letter S, so the digits are S54-076,557, so I found it.

Only online photo browsing. I used zoom up to browse and downloaded all the big pictures of this document into a compressed package, but there is something wrong with your email. I couldn't send it to you by QQ email, so I sent it to the network disk, which is also convenient for others to download.

It was delivered to the other party's mailbox 20 1 1 at 9:3 1 on Friday, July 8th.