Filing search / Ownership / Clean Harbors, Inc. / Page 26

S-8

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13 Jun 95

Registration of securities for employees

12:00am

10-K

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23 Feb 95

Annual report

12:00am

15-15D

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14 Feb 95

Suspension of duty to report

12:00am

10-Q

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15 Aug 94

Quarterly report

12:00am

S-2

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17 Jun 94

Registration of securities

12:00am

10-Q

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4 May 94

Quarterly report

12:00am

DEF 14A

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8 Apr 94

Definitive proxy

12:00am