JPH0420145Y2 - - Google Patents

Info

Publication number

JPH0420145Y2

JPH0420145Y2 JP13899885U JP13899885U JPH0420145Y2 JP H0420145 Y2 JPH0420145 Y2 JP H0420145Y2 JP 13899885 U JP13899885 U JP 13899885U JP 13899885 U JP13899885 U JP 13899885U JP H0420145 Y2 JPH0420145 Y2 JP H0420145Y2

Authority

JP

Japan

Prior art keywords

entrance

section

intercom

frame

vertical

Prior art date

1985-09-11

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

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• 239000011324 bead Substances 0.000 description 12
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• 239000000463 material Substances 0.000 description 8
• 238000010079 rubber tapping Methods 0.000 description 6
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• 238000001514 detection method Methods 0.000 description 3
• 238000010276 construction Methods 0.000 description 2
• JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
• 238000013459 approach Methods 0.000 description 1
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• 238000007789 sealing Methods 0.000 description 1
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