30 filings
15-12G
TDGO
3-D Geophysical Inc
30 Apr 98
Securities registration termination
12:00am
SC 14D9/A
TDGO
3-D Geophysical Inc
10 Apr 98
Tender offer solicitation (amended)
12:00am
SC 14D9/A
TDGO
3-D Geophysical Inc
1 Apr 98
Tender offer solicitation (amended)
12:00am
10-K405
1997 FY
TDGO
3-D Geophysical Inc
30 Mar 98
Annual report (delinquent filer disclosure)
12:00am
SC 14D9/A
TDGO
3-D Geophysical Inc
27 Mar 98
Tender offer solicitation (amended)
12:00am
SC 14D9/A
yptlbg5
25 Mar 98
Tender offer solicitation (amended)
12:00am
SC 14D9/A
a7c0hqhccq
19 Mar 98
Tender offer solicitation (amended)
12:00am
SC 14D9
42hxug1bq8lgwxvjo872
13 Mar 98
Tender offer solicitation
12:00am
8-K
a38 ysgec4n
10 Mar 98
Current Report
12:00am
8-K
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23 Dec 97
Current Report
12:00am
8-K
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8 Oct 97
Current Report
12:00am
8-A12G/A
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21 Jul 97
Registration of securities (amended)
12:00am
8-K
rwkpab66tvj4rrbbmuwm
18 Jul 97
Other events
12:00am
8-A12G
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18 Jul 97
Registration of securities
12:00am
DEF 14A
1vpc 0j65gqx7j
22 Apr 97
Definitive proxy
12:00am
8-K/A
rv50525nf a0gvd1i81s
11 Apr 97
Financial statements and exhibits
12:00am
10-K405
iirr1ku6u
31 Mar 97
Annual report (delinquent filer disclosure)
12:00am