JPH023867Y2 - - Google Patents

Info

Publication number

JPH023867Y2

JPH023867Y2 JP5893785U JP5893785U JPH023867Y2 JP H023867 Y2 JPH023867 Y2 JP H023867Y2 JP 5893785 U JP5893785 U JP 5893785U JP 5893785 U JP5893785 U JP 5893785U JP H023867 Y2 JPH023867 Y2 JP H023867Y2

Authority

JP

Japan

Prior art keywords

drum

impact

mats

mat

space

Prior art date

1985-04-22

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
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