HENDERSON HELEN LEE

Related Filers (1)

Ownership (3)

SC 13D/A
Thursday, 6/29/2000
MINE SAFETY APPLIANCES CO: Major Shareholders
SC 13D
Friday, 3/24/2000
MINE SAFETY APPLIANCES CO: Major Shareholders
SC 13D/A
Monday, 11/18/1996
MINE SAFETY APPLIANCES CO: Major Shareholders
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