JPS6220867Y2 - - Google Patents

Info

Publication number

JPS6220867Y2

JPS6220867Y2 JP17217180U JP17217180U JPS6220867Y2 JP S6220867 Y2 JPS6220867 Y2 JP S6220867Y2 JP 17217180 U JP17217180 U JP 17217180U JP 17217180 U JP17217180 U JP 17217180U JP S6220867 Y2 JPS6220867 Y2 JP S6220867Y2

Authority

JP

Japan

Prior art keywords

roof

concave groove

support member

keyboard instrument

roof member

Prior art date

1980-12-02

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

• 230000008878 coupling Effects 0.000 claims description 11
• 238000010168 coupling process Methods 0.000 claims description 11
• 238000005859 coupling reaction Methods 0.000 claims description 11
• 238000005096 rolling process Methods 0.000 description 2
• XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
• 229910052782 aluminium Inorganic materials 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000001125 extrusion Methods 0.000 description 1
• 210000000056 organ Anatomy 0.000 description 1