JPS63158090U - - Google Patents

Info

Publication number

JPS63158090U

JPS63158090U JP5013087U JP5013087U JPS63158090U JP S63158090 U JPS63158090 U JP S63158090U JP 5013087 U JP5013087 U JP 5013087U JP 5013087 U JP5013087 U JP 5013087U JP S63158090 U JPS63158090 U JP S63158090U

Authority

JP

Japan

Prior art keywords

magnetic circuit

outer diameter

rare earth

utility

micro speaker

Prior art date

1987-04-02

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 229910052761 rare earth metal Inorganic materials 0.000 claims 1
• 150000002910 rare earth metals Chemical class 0.000 claims 1
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 229910052742 iron Inorganic materials 0.000 description 1