BARNICKEL WILLIAM S & CO

Related Filers (1)

Ownership (4)

SC 13D/A
Thursday, 2/27/1997
PETROLITE CORP: Major Shareholders
SC 13D/A
Thursday, 1/30/1997
PETROLITE CORP: Major Shareholders
SC 13D/A
Friday, 11/29/1996
PETROLITE CORP: Major Shareholders
SC 13D/A
Tuesday, 11/12/1996
PETROLITE CORP: Major Shareholders
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Proxies (1)

PREC14A
Tuesday, 11/12/1996
Preliminary proxy statement in connection with contested solicitations
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