JPH0480461U - - Google Patents

Info

Publication number

JPH0480461U

JPH0480461U JP12402490U JP12402490U JPH0480461U JP H0480461 U JPH0480461 U JP H0480461U JP 12402490 U JP12402490 U JP 12402490U JP 12402490 U JP12402490 U JP 12402490U JP H0480461 U JPH0480461 U JP H0480461U

Authority

JP

Japan

Prior art keywords

piston

cylinder

magnet

detection

vacuum cleaner

Prior art date

1990-11-26

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000001514 detection method Methods 0.000 claims description 4
• 239000000428 dust Substances 0.000 claims description 3
• 235000014676 Phragmites communis Nutrition 0.000 description 3
• 238000010586 diagram Methods 0.000 description 2
• 230000002093 peripheral effect Effects 0.000 description 1
• 239000000758 substrate Substances 0.000 description 1