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
x4j4d
25 Mar 98
Tender offer solicitation (amended)
12:00am
SC 14D9/A
lavbsagtssw343pt
19 Mar 98
Tender offer solicitation (amended)
12:00am
SC 14D9
8juw2
13 Mar 98
Tender offer solicitation
12:00am
8-K
emdja9eb7f lro
10 Mar 98
Current Report
12:00am
8-K
zopfdynf875y7o
23 Dec 97
Current Report
12:00am
8-K
0g3pm3qij63wje0ca
8 Oct 97
Current Report
12:00am
8-A12G/A
thwg83tnwvz1a5sh64
21 Jul 97
Registration of securities (amended)
12:00am
8-A12G
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18 Jul 97
Registration of securities
12:00am
8-K
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18 Jul 97
Other events
12:00am
DEF 14A
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22 Apr 97
Definitive proxy
12:00am
8-K/A
kug1lbrz0e54hv
11 Apr 97
Financial statements and exhibits
12:00am
10-K405
cg802inwyf3
31 Mar 97
Annual report (delinquent filer disclosure)
12:00am